0.50 mm, 0.25 mm, 0.35 mm Designed for complete protection while being X-rayed in a dentistâ??s chair. TECHNICAL SPECIFICATIONS All lyfkeeran apparel can be ordered in any of our wide range of colors. Choose one that best represents the personality of your medical facility! Each color is accompanied with piping in a complementary color. PRODUCT DETAILS Total protection for the patient in dentistâ??s chair Built-in Thyroid Shield with Velcro closure OPTIONAL FEATURES Available with magnetic closure SIZES Adult and Child